Environment setup eccodes problem

[WouterKoksNL]

Hi, I encountered problems running the example code (wind and solar) on a clean environment.
the line that gives errors is
from hefty.solar import get_solar_forecast

the following install fixed the problem
conda install -c conda-forge eccodes

error message:
"""
(hefty) PS C:\Users\wouterko\GitHub\hefty-forecasting> python main.py
Traceback (most recent call last):
File "C:\Users\wouterko\GitHub\hefty-forecasting\main.py", line 2, in
from hefty.solar import get_solar_forecast
File "C:\Users\wouterko\AppData\Local\anaconda3\envs\hefty\Lib\site-packages\hefty\solar.py", line 4, in
from herbie import Herbie, FastHerbie
File "C:\Users\wouterko\AppData\Local\anaconda3\envs\hefty\Lib\site-packages\herbie_init_.py", line 206, in
from herbie.core import Herbie
File "C:\Users\wouterko\AppData\Local\anaconda3\envs\hefty\Lib\site-packages\herbie\core.py", line 25, in
import cfgrib
File "C:\Users\wouterko\AppData\Local\anaconda3\envs\hefty\Lib\site-packages\cfgrib_init_.py", line 20, in
from .cfmessage import COMPUTED_KEYS
File "C:\Users\wouterko\AppData\Local\anaconda3\envs\hefty\Lib\site-packages\cfgrib\cfmessage.py", line 29, in
from . import abc, messages
File "C:\Users\wouterko\AppData\Local\anaconda3\envs\hefty\Lib\site-packages\cfgrib\messages.py", line 28, in
import eccodes # type: ignore
^^^^^^^^^^^^^^
File "C:\Users\wouterko\AppData\Local\anaconda3\envs\hefty\Lib\site-packages\eccodes_init_.py", line 13, in
from .eccodes import * # noqa
^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\wouterko\AppData\Local\anaconda3\envs\hefty\Lib\site-packages\eccodes\eccodes.py", line 12, in
from gribapi import (
...<8 lines>...
)
File "C:\Users\wouterko\AppData\Local\anaconda3\envs\hefty\Lib\site-packages\gribapi_init_.py", line 13, in
from .gribapi import * # noqa
^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\wouterko\AppData\Local\anaconda3\envs\hefty\Lib\site-packages\gribapi\gribapi.py", line 34, in
from gribapi.errors import GribInternalError
File "C:\Users\wouterko\AppData\Local\anaconda3\envs\hefty\Lib\site-packages\gribapi\errors.py", line 16, in
from .bindings import ENC, ffi, lib
File "C:\Users\wouterko\AppData\Local\anaconda3\envs\hefty\Lib\site-packages\gribapi\bindings.py", line 105, in
raise RuntimeError("Cannot find the ecCodes library")
RuntimeError: Cannot find the ecCodes library
"""

[williamhobbs]

Thanks for reporting this, and glad you were able to fix it. I haven't had issues with eccodes in a while, at least I don't think since it became pip-installable.

Can you share details on how you setup the environment and installed everything? Including version of python? I'd like to try to replicate this.

[williamhobbs]

Just a guess, but it might be that you have a newer version of python where there is not a compatible version of eccodes via pypi (pip) but there is a version available via conda-forge.

https://www.linkedin.com/posts/eric-drewitz-b19b2374_python-data-weather-activity-7414108465100468224-vQ2S/

[WouterKoksNL]

That sounds reasonable, I was using a clean conda environment with python 3.14.3 (on windows 11)

[williamhobbs]

Thanks for the info. Is it possible that you already had eccodes 2.45.0 installed, or that you setup the environment before Feb 24?

Herbie requires eccodes >= 2.45.0 [1], but you need 2.46.0 for python 3.14.

[1] https://github.com/blaylockbk/Herbie/blob/main/pyproject.toml